INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-next-kasan-gce-5,10.128.0.9' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 161.331614] device gre0 entered promiscuous mode [ 215.008045] BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 53s! [ 215.016224] Showing busy workqueues and worker pools: [ 215.021445] workqueue events: flags=0x0 [ 215.025484] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 [ 215.031683] pending: cache_reap [ 215.035317] workqueue events_power_efficient: flags=0x80 [ 215.040753] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 [ 215.046887] pending: do_cache_clean [ 215.050866] workqueue mm_percpu_wq: flags=0x8 [ 215.055347] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 [ 215.061484] pending: vmstat_update [ 215.065393] workqueue ipv6_addrconf: flags=0x40008 [ 215.070314] pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/1 [ 215.076279] pending: addrconf_dad_work